WO2006062051A1 - 圧縮機 - Google Patents
圧縮機 Download PDFInfo
- Publication number
- WO2006062051A1 WO2006062051A1 PCT/JP2005/022279 JP2005022279W WO2006062051A1 WO 2006062051 A1 WO2006062051 A1 WO 2006062051A1 JP 2005022279 W JP2005022279 W JP 2005022279W WO 2006062051 A1 WO2006062051 A1 WO 2006062051A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- hole
- valve
- discharge
- fixing bolt
- compressor
- Prior art date
Links
- 230000006835 compression Effects 0.000 claims description 14
- 238000007906 compression Methods 0.000 claims description 14
- 230000002093 peripheral effect Effects 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 10
- 238000004080 punching Methods 0.000 claims description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 239000003507 refrigerant Substances 0.000 description 6
- 230000010349 pulsation Effects 0.000 description 5
- 238000007789 sealing Methods 0.000 description 5
- 239000000919 ceramic Substances 0.000 description 2
- 239000010687 lubricating oil Substances 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/30—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
- F04C18/32—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having both the movement defined in group F04C18/02 and relative reciprocation between the co-operating members
- F04C18/322—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having both the movement defined in group F04C18/02 and relative reciprocation between the co-operating members with vanes hinged to the outer member and reciprocating with respect to the outer member
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/12—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
- F04C29/124—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet with inlet and outlet valves specially adapted for rotary or oscillating piston pumps
- F04C29/126—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet with inlet and outlet valves specially adapted for rotary or oscillating piston pumps of the non-return type
- F04C29/128—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet with inlet and outlet valves specially adapted for rotary or oscillating piston pumps of the non-return type of the elastic type, e.g. reed valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/0027—Pulsation and noise damping means
- F04B39/0055—Pulsation and noise damping means with a special shape of fluid passage, e.g. bends, throttles, diameter changes, pipes
- F04B39/0066—Pulsation and noise damping means with a special shape of fluid passage, e.g. bends, throttles, diameter changes, pipes using sidebranch resonators, e.g. Helmholtz resonators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/10—Adaptations or arrangements of distribution members
- F04B39/1066—Valve plates
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/10—Adaptations or arrangements of distribution members
- F04B39/1073—Adaptations or arrangements of distribution members the members being reed valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C23/00—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
- F04C23/008—Hermetic pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/06—Silencing
- F04C29/061—Silencers using overlapping frequencies, e.g. Helmholtz resonators
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/7722—Line condition change responsive valves
- Y10T137/7837—Direct response valves [i.e., check valve type]
- Y10T137/7879—Resilient material valve
- Y10T137/7888—With valve member flexing about securement
- Y10T137/7891—Flap or reed
- Y10T137/7892—With stop
Definitions
- the present invention relates to a compressor such as a rotary compressor used in an air conditioner or the like.
- a conventional compressor has a cylinder upper frame 100 having a discharge hole 100a opened in the cylinder, and a discharge valve 101 that opens and closes the discharge hole 100a of the upper frame 100. And a valve pressing member 102 that sandwiches the discharge valve 101 in cooperation with the upper frame body 100, and a fixed bolt 103.
- the valve pressing member 102 has a through hole 102a, and the upper frame 100 has a screw hole 100b.
- the fixing bolt 103 is passed through the through hole 102a of the valve pressing member 102 and screwed into the screw hole 100b of the upper frame 100, whereby the discharge valve 101 is It is sandwiched between the upper frame body 100 and the valve pressing member 102 (see Japanese Utility Model Publication No. 61-5373).
- the thickness of the upper frame 100 is secured in order to secure an effective screw length. Needed to be increased. For this reason, when the dimension in the axial direction (thickness direction) of the screw hole 100b of the upper frame 100 is increased, the volume of the screw hole 100b of the upper frame 100 (hereinafter referred to as top clearance). It became big.
- the top clearance is large, the amount of compressed gas remaining in the discharge hole 100a increases at the end of compression, and is generated by re-expansion of the compressed gas from the discharge hole 100a. As a result, the efficiency of the compressor is reduced and the operation noise is increased.
- volumetric efficiency is reduced during low-speed operation of the compressor, and power is increased during high-speed operation of the compressor. Also, the pulsation pressure generated by the re-expansion of the compressed gas increased the operating noise. Disclosure of the invention
- an object of the present invention is to provide a compressor with improved performance by reducing the volume of the discharge hole.
- a compressor according to the present invention provides:
- a cylinder body forming a cylinder chamber
- An end face member attached to the end face of the cylinder body and having a discharge hole and a through hole communicating with the cylinder chamber;
- a discharge valve for opening and closing the discharge hole of the end face member
- a valve pressing member having a screw hole and a fixing bolt having a head
- the head of the fixing bolt is disposed on the cylinder body side of the end face member, and the fixing bolt is threaded through the through hole of the end face member and screwed into the screw hole of the valve pressing member. In the combined state, the discharge valve is sandwiched between the end face member and the valve pressing member.
- the fixing bolt is passed through the through hole of the end surface member and screwed into the screw hole of the valve pressing member, and the discharge valve is Since the end face member and the valve pressing member are sandwiched, there is no need to cut a screw in the through hole of the end face member, and the thickness of the end face member around the through hole can be reduced. That is, the axial dimension (thickness direction) of the discharge hole of the end face member can be reduced.
- the fixing bolt and the screw hole of the valve pressing member are screw-coupled, compared to the case where the valve pressing member and the end surface member are fixed by a rivet,
- the fixing bolt can be retightened, and the alignment of the discharge valve and the discharge hole can be corrected. Further, the number of parts is reduced and the assembly work efficiency is improved as compared with the case where the valve pressing member and the end face member are fixed with screws and nuts.
- the cylinder main body has a concave portion that accommodates the head portion of the fixing bolt on an end surface of the cylinder main body.
- the screw hole of the valve pressing member is subjected to burring.
- the screw hole of the valve pressing member is subjected to burring, an effective screw length can be secured without increasing the thickness of the valve pressing member.
- the periphery of the screw hole on the side where the fixing bolt is inserted can be automatically formed in an R shape, which can be easily assembled as a guide when the fixing bolt is inserted.
- valve pressing member is also a steel punching material.
- valve pressing member is a steel punching material, man-hours for changing the screw hole burring can be reduced, and the valve pressing member can be manufactured at low cost. it can.
- the end surface member is made of a ceramic or a sintered material.
- the end face member is made of a ceramic or a sintered material, the end face member can be manufactured at low cost.
- the discharge valve has a protrusion that enters the discharge hole of the end face member.
- the discharge valve has a protrusion that enters the discharge hole of the end surface member, and therefore, the protrusion of the discharge valve is in the discharge hole of the end surface member.
- the volume of the discharge hole of the end face member can be further reduced, and the amount of compressed gas remaining in the discharge hole at the end of compression can be further reduced. In this way, a decrease in driving efficiency and an increase in driving sound can be further suppressed.
- the protrusion of the discharge valve enters the discharge hole of the end face member, the sealing performance of the discharge valve with respect to the discharge hole can be secured. Further, when the discharge valve is assembled to the end face member, the discharge valve can be easily assembled to the end face member by positioning the protrusion by inserting it into the discharge hole.
- the protrusion of the discharge valve is formed in a tapered shape so that a tip of the protrusion is thin, and the discharge hole of the end surface member is formed of the protrusion. It is formed in a tapered shape corresponding to the shape of the part.
- the protrusion and the discharge hole are formed in a tapered shape, the protrusion can be fitted in a state of substantially matching the discharge hole, The sealing performance of the discharge valve with respect to the discharge hole can be further improved.
- the valve pressing member includes a plate-like main body having a hole, and the main body on one surface of the main body opposite to the discharge valve with respect to the main body.
- An annular convex portion provided around the hole portion of the portion,
- the inner peripheral surface of the hole portion of the main body is formed in a cylindrical surface and a tapered surface in order from one surface side to the other surface side of the main body portion, and the inner peripheral surface of the annular convex portion is the surface of the main body portion.
- the cylindrical surface has the same diameter as the cylindrical surface and is concentrically connected to the cylindrical surface of the main body portion.
- the cylindrical surface of the main body portion and the cylindrical surface of the annular convex portion are jointly formed. Thus, the screw hole is formed.
- the hole portion of the main body portion of the valve pressing member Since the inner peripheral surface is formed in a cylindrical surface and a tapered surface, when the fixing bolt is inserted into the hole portion of the valve pressing member, the fixing bolt is caused by the taper surface of the hole portion. It is aligned and the fixing bolt can be reliably guided to the screw hole.
- the portion forming the tapered surface of the main body portion has an elastic force, so that the screw hole can be reduced in diameter or expanded in diameter. Therefore, when the fixing bolt is screwed into the screw hole, initial loosening of the fixing bolt by the screw hole can be prevented.
- the cylindrical surface of the main body portion and the cylindrical surface of the annular convex portion jointly form the screw hole, the cylindrical surface of the annular convex portion forms the screw hole.
- the screw length can be increased.
- the screw hole has a screw length larger than the thickness of the main body.
- the screw hole has a screw length that is greater than or equal to the thickness of the main body portion. Therefore, even if the thickness of the main body portion is reduced, the screw hole The screw length can be secured and the fixing bolt can be securely fastened to the screw hole.
- the end surface of the end surface member is provided with a recess portion that accommodates the discharge valve and the valve pressing member, and the recess portions are substantially opposite to each other.
- the one side surface and the other side surface are located on both sides of the discharge valve and the valve holding member so as to substantially position the portions around the fixing bolts of the discharge valve and the valve holding member,
- valve pressing member rotates together with the fixing bolt.
- the valve holding member portion on the discharge hole side with respect to the shaft of the fixing bolt is disposed on the side in contact with the shaft,
- the other side surface rotates together with the fixing bolt when the fixing bolt is rotated with respect to the screw hole of the valve pressing member in a direction in which the cylinder body side force of the end surface member is also tightened.
- the valve pressing member on the discharge hole side with respect to the shaft of the fixing bolt is disposed on the side away from the shaft.
- the recess has the one side surface and the other side surface. Therefore, when the fixing bolt is tightened against the screw hole, the discharge valve and the valve presser Even if the member follows the rotation of the fixing bolt and rotates together, the member is blocked by the one side surface of the recess.
- the said other side surface can guide the said discharge valve and the said valve holding member to the said through-hole side with the said one side surface easily.
- the length from the through hole on the one side surface to the discharge hole side is longer than the length from the through hole to the discharge hole side on the other side surface.
- the length from the through hole to the discharge hole side on the one side surface is longer than the length from the through hole to the discharge hole side on the other side surface.
- the discharge valve has a lid portion that contacts or separates from the discharge hole, and the fixing bolt is tightened in the direction of tightening the cylinder body side force of the end surface member.
- the discharge valve rotates together with the valve holding member, and the portion of the discharge valve closer to the discharge hole than the shaft of the fixed bolt comes into contact with the one side surface of the recess.
- the center of the lid portion of the discharge valve and the center of the discharge hole substantially coincide with each other.
- the center of the lid portion of the discharge valve and the center of the discharge hole are Therefore, when the fixing bolt is tightened with respect to the screw hole, the discharge valve follows the rotation of the fixing bolt and rotates together with the valve pressing member so as to contact the one side surface of the recess. Touch. Therefore, by tightening the fixing bolt, The center of the lid portion of the discharge valve and the center of the discharge hole can be substantially coincided with each other, so that the positional accuracy between the discharge valve and the discharge hole can be further improved.
- the concave portion forms a Helmholtz-type resonance chamber. Therefore, the wavelength of the pulsating sound of the refrigerant gas generated when compressed in the cylinder chamber is It interferes with the interference wave from the resonance chamber and attenuates greatly. Therefore, pulsation noise is reduced and noise can be reduced. Therefore, the recess can serve as both a space for accommodating the bolt head and the resonance chamber.
- FIG. 1 is a cross-sectional view showing a first embodiment of the compressor of the present invention.
- FIG. 2 is a plan view of the compressor.
- FIG. 3 is an enlarged cross-sectional view of a main part showing a first embodiment of the compressor of the present invention.
- FIG. 5 is an enlarged cross-sectional view of a main part showing a third embodiment of the compressor of the present invention.
- FIG. 8 is an enlarged cross-sectional view of the main part of FIG.
- FIG. 9 is an essential part enlarged cross-sectional view showing a sixth embodiment of the compressor of the present invention.
- FIG. 10 is an enlarged sectional view of a main part of a conventional compressor.
- the compressor discharges compressed high-temperature and high-pressure discharge gas from the compression unit 2 to fill the inside of the casing 1, and passes the gap between the stator 5 and the rotor 6 of the motor 3 above. Thus, after the motor 3 is cooled, it is discharged from the discharge pipe 13 to the outside. Lubricating oil 9 is stored in the lower part of the high pressure region in the casing 1.
- the drive shaft 12 passes through the upper end face member 23 and the lower end face member 24 and enters the cylinder chamber 22.
- the cylinder chamber 22 is partitioned by a blade 28 provided integrally with the roller 27.
- crank pin 26 rotates eccentrically with the drive shaft 12, and the roller 27 fitted to the crank pin 26 is connected to the outer peripheral surface of the roller 27. Is brought into contact with the inner peripheral surface of the cylinder chamber 22 and revolved.
- the blade 28 moves forward and backward while the both side surfaces of the blade 28 are held by the bushes 25, 25. Do Then, the low-pressure refrigerant is sucked into the suction chamber 22a from the suction pipe 11, compressed in the discharge chamber 22b to a high pressure, and then the high-pressure refrigerant is discharged from the discharge hole 23a.
- the end face member 23 is provided with a plate-like discharge valve 31 and a plate-like valve pressing member 32.
- the discharge valve 31 opens and closes the discharge hole 23a, and the valve pressing member 32 sandwiches the discharge valve 31 in cooperation with the end face member 23.
- the discharge valve 31 has a hole 31a, and the valve pressing member 32 has a screw hole 32a.
- the discharge valve 31 and the valve pressing member 32 are fixed to the end surface member 23 by fixing bolts 33. That is, the head 33a of the fixing bolt 33 is disposed on the cylinder body 21 side of the end face member 23, the fixing bolt 33 is passed through the through hole 23b of the end face member 23, and While being passed through the hole 31a of the discharge valve 31 and screwed into the screw hole 32a of the valve pressing member 32, the discharge valve 31 is connected to the end face member 23 and the valve pressing member 32. It is pinched.
- the discharge valve 31 closes the discharge hole 23a in a free state.
- the compressed gas elastically deforms the discharge valve 31 and is discharged from the discharge hole 23a.
- the valve holding member 32 suppresses the movement of the discharge valve 31 so that the discharge valve 31 is not deformed (oscillated) more than necessary.
- the muffler body 41 and the end surface member 23 form a muffler chamber 41.
- the muffler chamber 41 and the cylinder chamber 22 communicate with each other through the discharge hole 23a.
- the fixing bolt 33 is formed by the penetration of the end face member 23. Since the discharge valve 31 is sandwiched between the end surface member 23 and the valve pressing member 32 in a state of being inserted into the hole 23b and screwed into the screw hole 32a of the valve pressing member 32, the end surface It is not necessary to cut a screw in the through hole 23b of the member 23, and the thickness around the through hole 23b of the end face member 23 can be reduced. That is, the dimension in the axial direction (thickness direction) of the discharge hole 23a of the end face member 23 can be reduced.
- top clearance the volume of the discharge hole 23a of the end face member 23 (hereinafter referred to as top clearance) can be reduced, and the amount of compressed gas remaining in the discharge hole 23a at the end of compression can be reduced. can do.
- volumetric efficiency can be improved when the compressor is operated at low speed, and power can be reduced when the compressor is operated at high speed.
- the pulsation pressure generated by the re-expansion of the compressed gas can be reduced to reduce the operation noise.
- the fixing bolt 33 and the screw hole 32a of the valve pressing member 32 are screw-coupled, compared with the case where the valve pressing member 32 and the end surface member 23 are fixed by rivets.
- the fixing bolt 33 can be retightened, and the alignment of the discharge valve 31 and the discharge hole 23a can be corrected.
- the seal check can be easily aligned. Can do.
- valve pressing member 32 and the end face member 23 are fixed with screws and nuts, the number of parts is reduced, and the assembling work efficiency is improved.
- the cylinder body 21 has a recess 21 a that accommodates the head 33 a of the fixing bolt 33 on the end surface of the cylinder body 21.
- the head portion 33a of the fixing bolt 33 can be hidden in the concave portion 21a on the end surface of the cylinder body 21. Therefore, since the fixing bolt 33 can be disposed avoiding the cylinder chamber 22, the through hole 23 b of the end surface member 23 through which the fixing bolt 33 is passed is formed in the bypass passage of the cylinder chamber 22. In addition, there is no decrease in compression performance.
- FIG. 4 shows a second embodiment of the present invention.
- the screw hole 42a of the valve pressing member 42 is subjected to a burring force.
- the valve pressing member 42 also serves as a steel punching material having a spreadability. Note that the same reference numerals as those in the first embodiment have the same configurations as those in the first embodiment, and thus description thereof is omitted.
- the screw hole 42a of the valve pressing member 42 is subjected to a burring force, it is possible to ensure an effective screw length without increasing the thickness of the valve pressing member 42.
- the periphery of the screw hole 42a on the side through which the fixing bolt 33 is passed can be automatically chamfered in an R shape, and can be easily used as a guide when the fixing bolt 33 is inserted. Can be assembled.
- valve pressing member 42 also serves as a steel punching material, it is possible to reduce the number of steps for burring of the screw hole 42a and to manufacture the valve pressing member 42 at a low cost.
- FIG. 5 shows a third embodiment of the present invention.
- the end face member 53 has a discharge hole 53a through which compressed gas is discharged and a through hole 53b through which the fixing bolt 33 is inserted.
- the discharge valve 51 has a hole 51a through which the fixing bolt 33 is passed, and a protrusion 51b that enters the discharge hole 53a of the end face member 53. Note that the same reference numerals as those in the first embodiment have the same configurations as those in the first embodiment, and thus description thereof is omitted.
- the protrusion 51b of the discharge valve 51 is formed in a taper shape so that the tip of the protrusion 51b is narrowed.
- the discharge hole 53a of the end face member 53 is formed in a taper shape corresponding to the shape of the protrusion 5 lb.
- the discharge valve 51 has the protruding portion 51b that enters the discharge hole 53a of the end surface member 53. Therefore, the protrusion 51b of the discharge valve 51 is connected to the discharge hole of the end surface member 53. 53a, the volume of the discharge hole 53a of the end face member 53 is further reduced. Therefore, the amount of compressed gas remaining in the discharge hole 53a at the end of compression can be further reduced. Therefore, it is possible to further suppress a decrease in driving efficiency and an increase in driving sound.
- the protrusion 51b of the discharge valve 51 enters the discharge hole 53a of the end face member 53, the sealing performance of the discharge valve 51 with respect to the discharge hole 53a can be secured. Further, when the discharge valve 51 is assembled to the end face member 53, the discharge valve 51 can be easily assembled to the end face member 53 by positioning the protrusion 51b into the discharge hole 53a.
- the protruding portion 5 lb and the discharge hole 53a are formed in a tapered shape, the protruding portion 51b can be fitted in a state of being substantially aligned with the discharge hole 53a, and the discharge valve 51 The sealing performance with respect to the discharge hole 53a can be further improved.
- the height dimension of the protrusion 5 lb can be set small. As described above, since the height dimension of the protruding portion 5 lb can be set small, it is possible to prevent the component accuracy of the protruding portion 51b from being lowered.
- FIG. 6 shows a fourth embodiment of the present invention.
- the valve pressing member 60 includes a plate-like main body portion 61 and an annular convex portion 66 provided on one surface of the main body portion 61 opposite to the discharge valve 31 with respect to the main body portion 61. And have. Note that the same reference numerals as those in the first embodiment shown in FIG. 3 have the same configurations as those in the first embodiment, and thus description thereof is omitted.
- the main body 61 has a hole 62.
- the inner peripheral surface 63 of the hole 62 of the main body 61 is formed into a cylindrical surface 63a and a tapered surface 63b in order of the one surface side force of the main body 61 in the order of the other surface.
- the cylindrical surface 63a extends in the thickness direction of the main body 61.
- the taper surface 63b gradually expands to the other surface side of the main body 60. That is, the taper surface 63b is a chamfered surface.
- the cylindrical surface 63a of the main body portion 61 and the cylindrical surface 67a of the annular convex portion 66 jointly form a screw hole 60a.
- the cylindrical surface 67a of the annular convex portion 66 can increase the screw length of the screw hole 60a. That is, the screw hole 60a has a screw length A that is not less than the thickness t of the main body 61.
- the inner peripheral surface 63 of the hole 62 of the main body 61 of the valve pressing member 60 is formed on the cylindrical surface 63a and the tapered surface 63b.
- the fixing bolt 33 is inserted into the hole 62 of the valve pressing member 60, the fixing bolt 33 is aligned by the tapered surface 63b of the hole 62, and the fixing bolt 33 is The screw hole 60a can be reliably guided.
- the portion of the main body 61 that forms the tapered surface 63b has an elastic force, so that the screw hole 60a can be reduced or expanded. That is, the tapered surface 63b of the main body 61 is an elastic squeeze allowance B. Therefore, when the fixing bolt 33 is screwed into the screw hole 60a, the initial loosening of the fixing bolt 33 by the screw hole 60a can be prevented.
- the screw hole 60a has a screw length A larger than the thickness t of the main body 61, the screw hole 60a can be obtained even if the thickness t of the main body 61 is reduced. Screw length A can be secured, and the fixing bolt 33 can be securely fastened to the screw hole 60a.
- the fixing bolt 33 is less likely to loosen, the fixing bolt 33 is not attached to the cylinder body 21 side even if the fixing bolt 33 is on the cylinder body 21 side. Does not fall into the main unit 21. Therefore, the assembled end face member 23 and the cylinder main body 21 are disassembled, and the fixing bolt 33 dropped into the cylinder main body 21 does not need to be taken out, and the reliability and durability are excellent.
- (Fifth embodiment) 7 and 8 show a fifth embodiment of the present invention.
- the end surface of the end surface member 83 is provided with a recess 84 that accommodates the discharge valve 71 and the valve pressing member 32.
- the same reference numerals as those in the first embodiment shown in FIG. 3 have the same configurations as those in the first embodiment, and thus the description thereof is omitted.
- the indented portion 84 has one side surface 84a and the other side surface 84b that are substantially opposed to each other.
- the one side surface 84a and the other side surface 84b are located on both sides of the discharge valve 71 and the valve pressing member 32 so as to substantially position the portions around the fixing bolts 33, respectively.
- the one side surface 84a and the other side surface 84b extend from the through hole 83b to the discharge hole 83a side.
- the discharge hole 83a and the through hole 83b are provided in the end face member 83, and are the same as the discharge hole 23a and the through hole 23b of the end face member 23 shown in FIG.
- the other side surface 84b is configured such that when the fixing bolt 33 is rotated with respect to the screw hole 32a of the valve pressing member 32 in a direction in which the cylinder body 21 side force of the end surface member 83 is also tightened, The member 32 rotates together with the fixing bolt 33, and is arranged on the side where the portion of the valve pressing member 32 on the discharge hole 83a side is separated from the axis of the fixing bolt 33.
- the discharge valve 71 has a lid portion 72 that contacts or separates from the discharge hole 83a.
- the fixing bolt 33 is rotated in the direction in which the cylinder body 21 side force of the end face member 83 is also tightened, the discharge valve 71 rotates together with the valve pressing member 32 due to friction with the valve pressing member 32. .
- the length C from the through hole 83b to the discharge hole 83a side on the one side surface 84a is equal to the length C from the through hole 83b on the other side surface 84b to the discharge hole 83a side. Therefore, when the fixing bolt 33 is tightened with respect to the screw hole 32a, the discharge valve 71 and the valve pressing member 32 follow the rotation of the fixing bolt 33. Even if it is rotated, it is reliably prevented by the one side surface 84a of the recess 84.
- the other side surface 84b is shorter than the one side surface 84a, the space on the side of the other side surface 84b of the recess 84 can be increased, and the discharge space can be prevented from being reduced. That is, as shown in FIG. 1, the muffler body 40 is attached to the end face member 83, and the space of the depression 84 can be increased, so that the space of the muffler chamber 41 can be increased. In FIG. 7, the muffler body 40 is omitted.
- the other side surface 84b can easily guide the discharge valve 71 and the valve pressing member 32 to the through hole 83b side together with the one side surface 84a.
- the one side 84a side of the recess 84 can improve the rotational position accuracy when the discharge valve 71 and the valve pressing member 32 are assembled, and the other side 84b of the recess 84 can be improved. Therefore, an increase in discharge pressure loss can be avoided.
- the one side surface 84a has a function of positioning the discharge valve 31.
- the one side surface 84a and the other side surface 84b have a function of guiding the discharge valve 71 and the valve pressing member 32.
- the one side surface 84a is not a smooth surface, and may have a convex portion.
- the discharge valve 71 contacts the convex portion of the one side surface 84a, the discharge valve 71
- the center of the lid 72 and the center of the discharge hole 83a may be made to substantially coincide with each other.
- the length C of the one side surface 84a may not be longer than the length D of the other side surface 84b, the discharge valve 71 and the valve pressing member 32 are Even if the rotation of the fixing bolt 33 follows the rotation, the one side surface 84a of the recess 84 is blocked.
- FIG. 9 shows a sixth embodiment of the present invention.
- the end face of the cylinder body 121 has a recess 121a for accommodating the head 33a of the fixing bolt 33, and the recess 121a forms a Helmholtz-type resonance chamber 130.
- the same reference numerals as those in the first embodiment shown in FIG. 3 have the same configurations as those in the first embodiment, and thus the description thereof is omitted.
- the resonance chamber 130 is a space defined by the recess 121a and the end face member 23.
- the cylinder body 121 is provided with a connecting passage 121b for connecting the resonance chamber 130 and the cylinder chamber 122.
- the connecting passage 121b is a groove provided on the end surface of the cylinder body 121.
- the connecting passage 121b opens in the vicinity of the discharge hole 23a.
- the connecting passage 12 lb may be formed by a hole penetrating the cylinder body 121.
- a force that is a swing compressor in which the roller 27 and the blade 28 are integrated may be a compressor in which the roller and the blade are separated.
- a reciprocating compressor may also be used.
- the discharge valve 31 may be sandwiched between the end face member 23 and the valve pressing member 32 without having to provide the hole 31a through which the fixing bolt 33 is inserted in the discharge valve 31.
- the discharge valves 31, 51, 71, the valve pressing members 32, 42, 60 and the fixing bolt 33 may be attached to the lower end surface member 24.
- the recess 21a is not limited to a space having a bottom surface, and may be a hole penetrating the cylinder body 21.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Compressor (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP05811647.6A EP1826406B1 (en) | 2004-12-06 | 2005-12-05 | Compressor |
US11/792,320 US7866961B2 (en) | 2004-12-06 | 2005-12-05 | Compressor with discharge valve arrangement |
CN2005800418539A CN101072945B (zh) | 2004-12-06 | 2005-12-05 | 压缩机 |
AU2005312771A AU2005312771B2 (en) | 2004-12-06 | 2005-12-05 | Compressor |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004352612 | 2004-12-06 | ||
JP2004-352612 | 2004-12-06 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2006062051A1 true WO2006062051A1 (ja) | 2006-06-15 |
Family
ID=36577878
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2005/022279 WO2006062051A1 (ja) | 2004-12-06 | 2005-12-05 | 圧縮機 |
Country Status (6)
Country | Link |
---|---|
US (1) | US7866961B2 (ja) |
EP (1) | EP1826406B1 (ja) |
KR (1) | KR100860687B1 (ja) |
CN (1) | CN101072945B (ja) |
AU (1) | AU2005312771B2 (ja) |
WO (1) | WO2006062051A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2015025457A1 (ja) * | 2013-08-23 | 2015-02-26 | 東芝キヤリア株式会社 | 圧縮機及び冷凍サイクル装置 |
WO2015064759A1 (ja) * | 2013-11-01 | 2015-05-07 | ダイキン工業株式会社 | 圧縮機 |
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DE102006060866B4 (de) * | 2006-12-22 | 2017-09-14 | Iav Gmbh Ingenieurgesellschaft Auto Und Verkehr | Plattenventil |
JP5273504B2 (ja) * | 2007-07-26 | 2013-08-28 | 株式会社ヴァレオジャパン | 圧縮機 |
DE102007060829A1 (de) * | 2007-12-18 | 2009-06-25 | BSH Bosch und Siemens Hausgeräte GmbH | Verdichter |
EP2893191B1 (en) | 2012-09-04 | 2019-04-17 | Carrier Corporation | Reciprocating refrigeration compressor suction valve seating |
TWM472176U (zh) * | 2013-11-07 | 2014-02-11 | Jia Huei Microsystem Refrigeration Co Ltd | 迴轉式壓縮機改良 |
JP6516150B2 (ja) | 2014-04-28 | 2019-05-22 | 株式会社リコー | 吸音装置、電子機器及び画像形成装置 |
KR102214840B1 (ko) * | 2014-05-02 | 2021-02-10 | 엘지전자 주식회사 | 압축기 및 스크롤 압축기 |
JP6635095B2 (ja) * | 2017-07-19 | 2020-01-22 | ダイキン工業株式会社 | 回転式圧縮機 |
JP6648785B2 (ja) * | 2018-07-11 | 2020-02-14 | 株式会社富士通ゼネラル | 圧縮機 |
WO2021192138A1 (ja) * | 2020-03-26 | 2021-09-30 | 三菱電機株式会社 | 圧縮機の吐出弁機構の製造方法および該吐出弁機構を備えた圧縮機 |
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- 2005-12-05 US US11/792,320 patent/US7866961B2/en not_active Expired - Fee Related
- 2005-12-05 WO PCT/JP2005/022279 patent/WO2006062051A1/ja active Application Filing
- 2005-12-05 EP EP05811647.6A patent/EP1826406B1/en not_active Not-in-force
- 2005-12-05 CN CN2005800418539A patent/CN101072945B/zh not_active Expired - Fee Related
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Cited By (5)
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---|---|---|---|---|
WO2015025457A1 (ja) * | 2013-08-23 | 2015-02-26 | 東芝キヤリア株式会社 | 圧縮機及び冷凍サイクル装置 |
JP2015040556A (ja) * | 2013-08-23 | 2015-03-02 | 東芝キヤリア株式会社 | 圧縮機及び冷凍サイクル装置 |
CN105392990A (zh) * | 2013-08-23 | 2016-03-09 | 东芝开利株式会社 | 压缩机及冷冻循环装置 |
WO2015064759A1 (ja) * | 2013-11-01 | 2015-05-07 | ダイキン工業株式会社 | 圧縮機 |
JP2015110946A (ja) * | 2013-11-01 | 2015-06-18 | ダイキン工業株式会社 | 圧縮機 |
Also Published As
Publication number | Publication date |
---|---|
AU2005312771A1 (en) | 2006-06-15 |
US20080113538A1 (en) | 2008-05-15 |
CN101072945B (zh) | 2011-06-15 |
EP1826406A1 (en) | 2007-08-29 |
EP1826406B1 (en) | 2014-08-13 |
US7866961B2 (en) | 2011-01-11 |
AU2005312771B2 (en) | 2010-05-27 |
CN101072945A (zh) | 2007-11-14 |
EP1826406A4 (en) | 2012-09-05 |
KR20070086942A (ko) | 2007-08-27 |
KR100860687B1 (ko) | 2008-09-26 |
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